Adding-machine.



J. L. DALTON. ADDING MACHINE.

APPLICATION FILED FEB. 27, I904- RENEWED NOV- 27, 1916. 1,225,590.Patented May 8,1917.

2 SHEETS-SHEET 1.

J. L. DALTON.

ADDING MACHINE.

APPLICATION FILED FEB. 21, 1904. RENEWED NOV. 27. 1916.

1,225,590. Patented May 8, 1917.

2 SHEETSSHEET 2.

'' QV/LW: AW

' provide a total or adding mechanism for' UNITE STATES PATENT OFFICE. I

' .IAMES I4. DAIITON OF POPLAR BLUFF, MISSOURI, ASSIGNOR, BY MESNEASSIGNMENTS,

. TO THE DALTON ADDING MACHINE COMPANY, OF CINCINNATI, OHIO, A COBPOBA-TION OF OHIC.

ADDING-MACHINE.

Patented May 8, 191 '7.

Application filed February 27, 1904, Serial No. 195,551. RenewedNovember 27, 1816. Serial No. 138,818.

To all whom it may concern.

Be it known that I, JAMES L. DmToN, a

citizen of the United States, resident of hereinafter shown, describedand claimed.

The general object of this invention is to use in adding machines andthe like, comprising two or more sets of independent totalizers,controlled by suitable means whereby either may be moved to position tobe operated by devices movable to register or to record predeterminednumbers, so that in such a machine both debit and credit accounts orother independent accounts, estimates or items may be carriedsimultaneously therein, and the various items recorded in theirrespective columns or colors,

or registered, and added separately in their respective totalizers.

Specifically the-invention is designed for use in connection with thatclass of machines shown and described in the application of HubertHopkins foran adding and" writing machine, whichsaid application wasfiled January 24, 1903, and numbered serially 140,390, patentedSeptember 24, 1912, No. 1,039,130, and the drawings herewith show theinvention applied to a machine of that construction for convenience, butit will be readily understood that it may, with me-- chanicalmodifications, be used in any machine in which gear sectors, racks orattachments are movable coordinately with the register or recorder, andhence by stating the specific object I do not waive or restrict thegeneral scope of the invention, nor the right to use the same in anynovel combination This invention relates solely to the adding ortotalizer wheels arranged in separate sets or groups and the method ofmoving either set of'wheels making up the separate totalizers, tooperative position, and has nothing to do with the general operation ofthe machine for registering or recording v purposes, and-in thisconnection the aim is to enable the operator to carry separate accounts,estimates or items by the use of one register or recorder with aseparate and distlnct total for each. As the recording or registerindevices form no part of my invention I wi 1 not describe those elementsexcept such as cooperate with the totalizer.

I Figure 1 is a sectional'view of an adding I machine of the typeillustrated in the aforesaid application Serial Number 140,390(pattented September 24, 1912, No. 1,039,130), showing one form of myinvention in comblnation therewith and the totalizer raised into meshwith the operating racks, the lock rod of the lower totalizer beingomitted from this view to avoid confusion. Fig. 2 is a side view of thecomplete invention, all other parts of the machine which are shown inthe above mentioned application and patent being omitted. Fig. 3 is afront view of the device.

As may readily be understood by reference to the application and patentmentioned, the type-carriers 1 are movable, and by the cooperation ofsuitable devices produce records on the platen A,-and the racks 2, aftera certain limited advance movement of the typecarriers, movecoordinately therewith, and upon backward movement operate the totalWheels to register the-different items therein, producing a total. Themovement of the type-carriers 1 and racks 2, toward recording positionis limited by suitable devices under the control of the operator, andtheir forward and backward movement which occurs in operation, is alsocontrolled by the operator. After the carriers 1 have been positionedrelative to the platen A the type in the carriers, and the platen arebrought into contact, thereby recording the required number. Then thetype-carriers 1, and the racks 2, are moved back and operate thetotalizer. My invention consists in the arrangement of a plurality ofindependently operable totalizers or sets of adding wheels, with devicesfor moving them at different times into connection with the racks, sothat when one class of items are recorded they may be added or totalizedin one set of wheels and another set of items may be added or totalizedin another set, and so on. The various totals may then be recordedindependently and in any suitable relation to each paper.

The shaft 3 extends crosswise adjacent to the racks 2 and is upheld bythe two supports 4 constituting a pivotally mounted actuating frame, andhaving cam slots 5 in their upper rear sides, arranged so that,

when the frame is oscillated on its pivots, the shaft 3 will be raisedor lowered, depending upon the direction of movement of the frame.Suitable connections are provided for in the invention of Hubert Hopkinsand shown and described in the patented application above referred tofor oscillating the actuating frame automatically when the racks 2 movebackward, but as they form no part of my invention they are not hereinshown nor described? The operative position is shown in Fig. 1 whereinthe shaft 3 is in the highest, or nearest position to the racks 2. As anincident to the forward movement of the type-carriers and the racks asrequired to aline the type for printing, the actuating frame 4 isactuated rearwardly to move the adding wheels transversely of theiraxis'out of engagement with the racks, so that said wheels are notoperated during forward movement of the racks, and this disengagement iseffected rior to any forward movement of the rac s. been recorded thetype-carriers and racks are moved rearwardly to their starting'points,and prior to any rearward movement of the racks'the actuating frame 4 isoperated to move the selected group of adding wheels transversely oftheir axis into engagement with the racks so that said selected group ofwheels will be operated in adding and also in transferring or carryingoperations by the racks in order to add the numbers recorded bysuccessive operations of the racks. The links 6 which are connected tothe shaft 3 hold said shaft from forward and backward movement andpermit it to be raised and lowered by operation of the actuating framein order to engage and disengage the selected group of wheelsrespectively with the racks.

The foregoing describes briefly the operation of the machine of theHopkins Patent, No. 1,039,130, whereby the adding wheels are moved intoand out engagement with the actuating racks by operation of theactuating frame 4, and from this description it will be understood thatthe adding wheels are disengaged from the racks as an incident toforward movement of the racks and prior to any such movement and areengaged with the racks automatically prior to rearward 'movement of theracks.

pawl levers 12 just the same as in the machine shown in the aboveapplication. During forward movement of the racks the shaft Afterthenumber has- 3 is in the lower ends of the slots 5 and the said shaft isheld against rotation by a pinion 13 on one end thereof meshing with arack 14. Said rack 14 is movable backward and forward on rollers 15,supported by posts 16 and 17. The post 17 has a hook 18 on its upperend.

I may mount the various groups of wheels on a single shaft, and by somesuitable meansthe'wheels 9 as shown in Figs. 2 and 3 thereby maintainingperfect alinement, and lock- 1 ing them against accidental rotation. Thelower or idle set is always locked until thrown around to operativeposition. One

arm of each pair of arms 19 carries a projection 22 and the one for theupper set of wheels when the shaft 3 is raised vertically by oscillatingthe frame 4, engages the hook 18 during the movement of the shaft 3upward, and said hook 18 being stationary holds the said arm 19 whichdraws the. rod 20 out of engagement with the teeth of the wheels 9before the latter engage the racks 2. This occurs just before said racksstart backward so that the wheels can be operated thereby. The upwardactuating'tendency of the springs 21 will prevent the backward travel ofthe racks 2 from turning the shaft 3 and unmeshing the wheels 9, whenall the racks 2 are operated; when only part .of the racks are operated,the idle or stationary ones hold the parts in position.

The rack 14 is pivoted at its front end to a link 23 to which isconnected a link 24 connected at its front end to an operating lever 25arranged conveniently in the key board. These parts are actuated forwardby a spring '26 preferably connected to the link 23 and to somestationary part of the machine as shown. When the totalizers are loweredby oscillation of the frame 4, the pinion 13 meshes with the rack 14 asaforesaid, as clearly shown in Fig. 2. Then, if it is so desired theshaft 3 can be revolved, the wheels 9 being unmeshed from the racks 2,and such revolving of the shaft will reverse the positions of the twosets of total wheels: That is the upper set will be in the positionformerly occupied by the lower set-below the shaft 3, and the lower setassumes the position formerly occupied by the upper set. This isaccomplished by pushing the lever 25 backward in opposition to thespring 26*, and thereby the rack 14 which as stated meshes with thepinion 13. This movement revolves the shaft v3, and owing to thedepressed position of the shaft and the arms 19, the shoulders 22 on thelatter will freely pass without engagement with the hook 18 as may beseen by reference to Fi 2. A pawl 26 is pivoted on the end of t 1e shaft3 and a projection 27 on the rack 4 raises said pawl slightly duringbackward movement of the rack. After the projection 27 passes beyond thepawl 26 and the lever 25 is released the spring 26 draws theparts to theposition shown in Fig. 2 in which the projection 27 is held against theend of the pawl, thus preventing further manipulation of the lever 25and the train of connections therefrom including the rack 14, until theactuating frame 4 is operated in the usual manner to raise the selectedgroup of adding Wheels into mesh with the racks which oc- 'cursautomatically and prior to rearward movement of the-racks after a numberhas been recorded. By use of my improved totalizing mechanism credit anddebit totals, or other totals may be carried simultaneously in themachine and printed (as described for printing totals in the heretoforementioned Hopkins Patent No. 1,039,130) in any'desired position orrelation to each other upon the same or different sheets of paper. Thecarrying, recording and'platen devices, form no part of my invention,and are omitted from illustration, and description, being fully shownand described in the'appllcation filed by said Hopkins, and patentedSept. 24, 1912, No. 1,039,130.

I claim: 1. In an adding machine, the combination'with movable racks, ofa shaft, a group of adding wheels on said shaft, automatic means formoving the shaft and thereby the wheels toward the racks when necessaryto add, two arms pivotedto said shaft, a

. lock-rod supported by said arms between moving said positioning frameto carry any I selected group of adding wheels to and from position tobeengaged with the recording mechanism by operation of the actuatingframe, and an actuating frame supporting said positioning frame formoving the same as required to engage the selected group of addingwheels with the recording mechanism.

3. The combination with the recording mechanism in an adding machine, ofa positioning frame, a plurality of separate groups of adding wheelscarried by said positioning frame, a locking mechanism for each grou ofwheels, manual means for moving said positioning frame to carry anyselected group of total wheels to and from position to be engaged withthe recording mechanism by operation of the actuating frame, anactuating frame supporting said positioning frame for moving the same asrequired to engage the selected group of adding wheels with therecording mechanism, and automatic means for releasing the lockingmechanism from any group of adding wheels that is moved into engagementwith the recording mechanism, as aforesaid.

4. In an adding machine the combination with the sectors 2, of thewheels 9 operable thereby to add, means for movingthe wheels into andout of engagement with the said sectors, the arms 19, the rod 20 carriedby said arms 19, means for holding said rod 20 between the teeth on thewheels 9 when the said wheels are out of engagement with the sectors 2,and means for holding the said rod away from the said wheels when thelatter are in engagement with the sectors 2, substantially as specified.

5. In an adding machine, a series of actuators, a plurality of sets ofadding wheels arranged to contain separate numbers simultaneously, aseparate lock for looking all of the wheels in each set, manuallycontrolled means for positioning any selected set of wheels in alinementwith said actuators for operation thereby, automatic means for movingany selected set of wheels into engagement with the actuators after theselected set has been placed in alinement with said actuators asaforesaid, and a device for positively disengaging all of said looksfrom the selected sets of wheels respectively as an incident to themovement of said selected sets of wheels intoengagement with saidactuators.

6. In an adding machine, a plurality of groups of adding wheels arrangedto contain separate numbers simultaneously, actuators for said wheels, apositioning frame supporting said wheels, manually controlled means formoving said positioning frame to place any selected set of wheels inposition to be engaged with said actuators, a lock for each group ofwheels preventing relative movement of said wheels when out ofengagement with said actuators, a device con trolling the movement ofsaid frame to engage the selected groups of wheels with said actuators,and a device for disengaging the look from the selected group of wheelsas an incident to the movement of that group into engagement with theactuators.

7. In an adding machine, a series of actuators arranged in numericalorders, a plurality of separate groups of adding wheels,

a positioning frame supporting said groups of adding wheels so that allof the wheels of each group are permanently in the same numerical orderswith said actuators and with the wheels of the other group, a device foroperating said positioning frame to place any selected group in positionto be moved into engagement with said actuators, a releasable lockingdevice for each group of wheels to prevent relative movement thereofwhen out of engagement with said actuators, a frame operatingautomatically to move the selected group of wheels into engagement withsaid actuators, and a device for disengaging the lock from the selectedgroup of Wheels automatically and as an incident to the movement thereofinto engagement with said actuators.

8. In an adding machine, a series of actuators arranged in numericalorders, a positioning frame, separate groups of adding wheels mounted insaid positioning frame, optionally operable means for moving saidpositioning frame to place any selected group of adding wheels inposition to be engaged with said actuators, locking devices engagingsaid wheels to prevent relative movement thereof when disengaged fromsaid wheels, an additional frame arranged to operate automatically tomove the selected group of wheels into engagement with said actuatorsfor adding operations, and a device for disengaging the locking devicefrom the selected group of adding wheels as an incident to the movementof said Wheels toward said actuators after said'wheels have beenpositioned by said positioning frame.

9. In an, adding machine, a series of racks arranged in numericalorders, separate series of adding wheels adapted to be moved into andout of engagement with said racks,

.a positioning frame supporting said series of adding wheels, optionallyoperable means for moving said positioning frame to place any selectedseries of adding wheels in position to be moved into engagement withsaid racks, an actuating frame for moving the selected series of addingwheels into enga ement with the racks, a releasable locking eviceengaging each series of adding wheels, springs for holding said locks inengagement with the adding wheels, and a device for disengaging saidlooks from said wheels as an incident to the movement of said wheels bysaid actuating frame into engagement with said racks.

10. In an adding machine, a series of total wheels, a pivoted support inwhich said wheels are mounted, a rod carried by said pivoted support andextending across said wheels, a spring for holding said rod inengagement with the Wheels when the wheels are'out of operativeposition, means for moving said wheels to operative position, and adevice mounted independently of said pivoted support for disengagingsaid rod from said wheels as an incident wheels, means for moving saidWheels toplace any selected group thereof in position to be engaged withsaid actuators, an independently releasable lock device engagmg eachgroup of adding wheels, means for supporting'and holding said lockdevice in engagement with said wheels during the movement of said wheelsto and from position to be engaged with said actuators, an automaticdevice controlling theengagement of the selected group of wheels withthe actuators, and a member for disengaging the lock from the selectedgroup of wheels as an incident to the movement of that group from theposition in which it had been placed for engagement with said actuators,as aforesaid, into engagement therewith.

12. In an adding machine, the combination of a series of movableactuating racks, a plurality of independent groups of adding wheelsadapted to be operated by said racks, a positioning frame supportingsaid adding wheel's, manually operative means for moving saidpositioning frame to place any selected group of adding wheels inalinement with said racks in position to be moved into engagement withsaid racks, automatic means for controlling the movement of the selectedgroup of adding wheels into engagement with said racks when the latteroperate, an element carried by said positioning frame for engaging eachgroup of adding wheelsto prevent them from relative movement when out ofengagement with said racks, and a device for holding said element out ofengagement with each group of wheels as an incident to the movement ofthe corresponding group of wheels into engagement with said racks bysaid automatic means after operation of said I positionmg frame.

13. In an adding machine, the combination of'a shaft, two arms attachedto said shaft, two adding wheel shafts carried by said arms, a group ofadding Wheels on each of said wheel shafts, a pinion on saidfirst-mentioned shaft, a rack adapted to mesh with said pinion, meansfor actuating said rack to rotate the shaft on which said pinion ismounted, a latch device for each of said groups of adding wheels, meansfor moving said groups of adding wheels selectively to operativeposition, and automoving said groups of adding wheels to place anyselected group thereof in position to be moved into mesh with said rackswhen the shaft 3 is moved by the swinging support, an independentlyreleasable device for locking each group of adding wheels when saidwheels are out of mesh with said racks, and a member in position torelease said device from said groups of wheels respectively as anincident to the movement of said wheels by said swinging frame to meshsaid wheels with said racks.

15. The combination with the recording mechanism in an adding machine,of a plurality of separate groups of adding wheels, a positioning framein which said wheels are mounted, means for moving said positioningframe to place said groups selectively for operation, locking mechanismcarried by said positioning frame and arranged to engage said wheelswhen not in cooperative relation with the recording mechanism and todisengage from any group when that group is moved to co- 1 operate withthe recording mechanism, and

an actuating frame operating as an incident to the operation of saidrecording mechanism first to unlock the selected group of adding wheelsand then to engage said group of adding wheels operatively with therecording mechanism.

16. In a calculating machine, actuating devices, revoluble totalizers,swinging bails 'for locking the wheels of said totalizers againstrotation when out of engagement with their actuating devices, springsholding said bails releasably in engagement with said wheels, and meansfor operating one of said bails to unlock the wheels of one of saidtotalizers when they are engaged with 'their actuating devices.

17. In a calculating machine, actuating devices, revoluble totalizers,swinging bails for locking the wheels of said totalizers againstrotation when out of engagement with their actuating devices, and meansfor operating one of said bails to unlock the wheels of one saidtotalizers when they are engaged with their actuating devices.

18. In a calculating machine, actuating devices, revoluble totalizers, aswingin frame in which totalizers are mounte means for actuating saidframe so as to adding operations by the movement of said racks, swingingbails for said groups of adding wheels respectively for locking themagainst rotation when out of cooperative relation to said racks, meansfor moving a selected group of adding wheels into cooperative relationtosaid racks, and a device for disengaging the swinging bail from theselected group of wheels when that group is moved into cooperativerelation with said racks, as aforesaid.

20. The combination of a series of racks arranged in numerical orders, aseries of adding wheels arranged in the same numerical orders with theracks, an additional series of adding wheels arranged in the samenumerical orders with the first-mentioned series and with the racks,means for selectively positioning either of said series of adding wheelsfor operation by the.

racks, automatic means for moving the selected series of adding wheelsinto engagement with the racks for adding operations and for disengagingand holding said wheels out of engagement with said racks while theracks are stationary, a swinging bail for each series of adding wheelsfor engaging and holding said wheels from accidental rotation While saidwheels are out of engagement with the racks, springs for holding saidbails in engagement with said series of adding wheels respectively, anda device for disengaging said bails from the selected series of addingwheels as an incident to the movement of said wheels into engagementwith the racks.

21. The combination of a series of racks arranged in numerical orders, aseries of adding wheels arranged in the same numerical orders with theracks, mechanism for operating the racks in adding and transferringoperations, mechanism for holding the adding wheels in mesh with theracks during operation of the racks in adding and transferringoperations, a revoluble rod between the teeth on said wheels when saidwheels are out of mesh with said racks,

a device for disengaging said rod from said wheels, and a swinging framesupporting said shaft and said wheels, and operable to move said wheelsinto and out of engagement with said racks.-

22. The combination of a series of racks arranged in numerical orders, aseries of wheels also arranged in numerical orders and movable into andout of engagement with said racks, a pivoted frame supporting saidwheels and operable to move said wheels into and out of engagement withsaid racks, manipulative mechanism for moving said wheels to differentadjustments in 'one of which they cannot be engaged with said racks bymovement of said frame, and a lock device engaging and accompanying saidwheels in their movements by said manipulative mechanism.

28. The combination of a series of racks arran ed in numerical orders,plural series 1 of ad ing wheels movable selectively to operativeposition with respect to said racks, mechanism for moving said series ofadding wheels selectively to and from operative position with respect tosaid racks, an independently releasable device engaging each series 0wheels and accompanying said wheels in their movements to and fromoperative position, and means for releasing said devices -from saidWheels as an incidentto the movement of said wheels into mesh with saidracks.

24. The combination of a series of racks arranged in numerical orders,plural series of adding wheels, mechanism for moving said seriesselectively to and from position from which they may be moved into engaement with said racks, automatic means or moving the wheels from theposition aforesaid into engagement with said racks as an incident to theoperation of said racks, a device for holding each series of wheels inproperv alinement when disengaged from said racks, means for disengaglngsaid device from said wheels as an incident to the movement of saidwheels from that position in which they may be moved into engagementwith said racks to engaging posltion, and means for holding said devicein engagement with said wheels when said wheels move out of thatposition from which they may be moved into engagement with said racks. r

25. In an adding machine, the combination of a series of racks, pluralgroups of adding wheels arranged to be operated in adding andtransferring operations through the movement of said racks, means formoving said roupspf wheels selectively into and out o a position fromwhich they may be moved into engagement with said racks,

\ selected grou means for lockin each group of wheels against rotation wen in that position from which they may be moved into engagement withsaid racks, and means for moving the of wheels into engagement with saidrac (s and disengaging said lock- 1 ment the wheels of each grou ingmeans from said wheels as an incident to such movement. 1

26. In an adding machine, the combination of a series of racks, pluralgroups of adding wheels arranged to be operated in adding andtransferring operations through the movement of said racks, means forselectively moving said groups alternately to the same position fromwhich they may be moved into engagement with said racks, and a devicefor preventin operation of said last-mentioned means w en in oneposition.

27. In an adding machine, actuating devices, separate groups of addingwheels each comprislng a series of wheels arranged in numerical orders,means for moving the groups of adding wheels selectively to position inalinement with but out of engagement with said actuating devices, adevice for holding in alinement the wheels of each group during theentire time that they are out of engagement with the actuating devicesincludlng the time that said wheels are in alinement with said actuatindevices, an element for engaging said device to disengage the same fromsaid wheels as an incident to the movement of said wheels intoengagement with said actuating devices, and means for holding saiddevice in position to be'reengag'ed by said wheels automatically whensaid wheels move out of engagement with said actuating devices.

28. In an adding machine, actuatin devices, separate groups of adding weels, means for moving the groups of adding, wheels selectively toposition in alinement with but out of engagement with said actuatingdevices, a device for holdin in alineuring the entire time that they areout o engagement with the actuating devices, including the time thatsaid wheels are in alinement with said actuating devices, a swingingframe for engaging the selected groups of adding wheels respectivel withsaid actuating devices, an element or disengaging said holding devicefrom said wheelsvas an incident to the movement of said wheels intoengagement with said actuating devices by' said swinging frame, andmeans for causing reengagement of said holding device and said wheelsautomatically when said wheels move out of engagement with saidactuating dcvioes.

29. In an adding machine, the combina- '120 tion of a single series ofactuating racks, a plurality of groups of adding wheels arran ed tobeoperated in adding and transferr-m operations through the movement ofsai racks, a device for locking the wheels of said 'wheels transverselyof their axis 13( into engagement with said racks for both adding andtransferrin operations by said racks, and means for disengaging thelooking device from the selected group of wheels as an incident to theoperation of said pivotally mounted supports moving said wheelstransversely of their axis into engagement With said racks, asaforesaid. v

30. In an adding machine, the combination of a single set ofdifferentially movable denominational actuating racks, means foroperating said racks in adding and also in carrying operations,'pluralgroups of adding wheels for adding numbers through the movement of saidracks, a pivoted frame holding one of said groups of wheels normally inengagement with said racks and operable to move said wheels bodilytransverselylof their axis out of engagement with said racks as anincident to the movement of said racks in one direction, a devicecontrolled by the position of said pivoted frame for locking the wheelof each group in any position thereof when said Wheels are out ofengagement with the racks, means for moving the selected group of wheelstransversely of their axis into engagement with the racks, and means fordisengaging said device "from said wheels as an incident to the movementof said Wheels transversely of their axis into engagement with saidracks, as aforesaid.

314 In an adding machine, the combination of a single series ofactuating racks, a plurality of groups of adding wheels arranged to beoperated both in adding and transferring operations through the move,-ment of said racks, actuating means operable to move any selected groupof said wheels transversely of their axis into engagement with saidracks for both adding and transferring operations-by said racks as'anincident to movement of said racks in onedirection, a device forengaging the wheels of each group in any position of said wheels whenout of engagement with said racks, means for disengaging said devicefrom the selected group of wheels as an incident to the operation ofsaid actuating means moving said wheels transversely of their axis intoengagement with said racks as aforesaid, and means for effectingreengagement of said device and said wheels as an incident to theoperation of said actuating means to disengage the selected group ofwheels from said racks. V

/ 32. In an adding machine, the combination of a single series ofactuating racks, a

plurality of groups of adding wheels arranged to be operated both inadding and transferring operations through the movement of said racks,means operating automatically as an incident to movement of said racksin one direction for disengaging said Wheels and racks, and operatingautomatically as an incidenttomovement of said racks in the oppositedirection to engage a selected group of said wheels with said racks, a

swinging bail supported in position to engage said wheels in anyposition thereof when out of engagement with said racks, and means forpreventing movement of said bail and to disengage the hail from thewheels as an incident to movement of the wheels transversely of theiraxis toward said racks;

33. In an adding machine, the combina tion of a series of type-carriers,racks, connections between-said racks and said typecarriers, wherebysaid racks will be moved to position to be operated in adding operagtions and enabling said racks to move independently of saidtype-carriers in transferring operations, plural groups of adding wheelsarranged to be operated in adding and transferring operations by themovement of said racks as aforesaid, an element for locking each groupof adding wheels when out of cooperative relation to said racks, devicesfor supporting and holdingv each of said elements, and means for movingany selected group of adding wheels transversely of their axes out ofengagement with said element and into cooperative relation to saidracks.

84. In an adding machine, the combination of a series of racks,type-carriers operable to position said racks for adding operations,connections between said racks and type-carriers enabling said racks tomove independently of the type-carriers in transferring operations,plural groups of adding wheels arranged to be operated in adding andtransferring operations by the movement of said racks, and element forlocking each group of adding wheels when out of cooperative relation tosaid racks, means for moving a selected group of adding Wheelstransversely of its axis into cooperative relation to said racks and asan incident thereto disengaging said selected group of adding wheelsfrom said element, and supporting arms supporting said element when inor out of engagement with said adding wheels.

35. In an adding machine, the combination of a series of racks, pluralgroups of adding wheels arranged to be operated 'in adding andtransferring operations by the movement of said racks, locking means forsaid groups of adding wheels respectively, J for locking them againstrotation when out 120 of cooperative relation to said racks, means tionwith a single series of actuating racks, 139

' said racks, a device for locking the wheels of each group againstrotation in any position of said wheels when out of engagement with saidracks, pivotally mounted supports for said groups of adding wheels,means for actuating said supports to move a selected group of addingwheels transversely of its axis into engagement With said racks for bothadding and transferring operations by said racks and as an incident tosuch transverse movement disengaging said adding wheels from theirlocking device.

37; The combination in an adding machine, of a series of racks, a memberholding said racks in idle position, a rock shaft, connections from saidrock shaft for moving said member to permit simultaneous differentialoperation of the racks, plural groups of adding wheels for selectivecooperation with the racks, means cooperating with each group of addingWheels to lock them positively against rotation when out of engagementwith'the racks, a device for selectively determining which of saidgroups of adding wheels may be operated, automatic means for moving saidselected group of adding wheels transversely of their axes intoengagcment with said racks and out of engagement'with the locking means,whereby the racks will actuate the adding wheels difler- Office.

[SEAL] Corrections in Letters Patent No; 1,225,590

and transferrin entially in one direction, manipulativemeans forchanging the periods of engagement and disengagement of said addingwheels and racks to enable the latter to actuate the former in theopposite direction, thereby restoring said adding wheels to zero, andautomatic means operable to print a total represented in said addingwheels as an incident of the restoring'thereof to zero.

38. In an adding machine, the combination of a series of racks, pluralgroups of adding wheels arranged to be operated in adding operations bythe movement of said rac (s, supports for supporting and moving saidadding wheels into and out of engagement with said racks, locking meansfor said groups of adding wheels respectively for locking them againstrotation when out of cooperative relation to said racks, means forselectively determining which group of adding wheels may be operated,and mechanism for positively moving said supports to move the selectedgroup of adding wheels transversely of its axis out of engagement withsaid locking means and, as an incident thereto, engaging said wheelswith said racks.

In testimony whereof I hereto aflix my signature in the presence of twowitnesses. JAMES L. DALTON. [L.S.] WVitnesses:

J. D. RIPPEY, W. M. ROBERTS.

, Signed and-sealed this 2d day of October, A. D. 1917 F. W. H. CLAY,

Acting Commissioner of Patents.

It is hereby certified that in Letters Patent N 0. 1,225,590 granted May8 1917 upon the application of James L. Dalton, of Poplar Bluff,Missouri, for an im rove ment in Adding-Machines,errors appear requiringcorrection as follows in the drawings, Sheet 1, Fig. 1, insert thereference-letter A and a lead line to indicate the platen; page 7, line104, claim 34, of the printed specificatiomtfor the word 2 d z Ll'l rerd an, and that the said Letters Patent should be read with these correclOIlS therein that the same-may conform to the record of the case in thePatent

